Normally, beetles have wings hidden under their elytra.

甲在鞘翅下面通常藏有翅膀。

Crickets hold their elytra up which creates a small air pocket that acts as a sounding box.

蟋蟀把鞘翅翘起形成一个小气囊，起到小共鸣的作用。

For the candidates, these two components are mounted on the elytra — the two most rigid wings on the insect.

对于演奏者这两部分都在它们的鞘翅上面——鞘翅是昆的两个硬质的翅膀。

Pseudoscorpions normally live under the bark, but the females like to slip under the elytra of longhorns when they land close by.

伪蝎通常生活在树皮下不过雌性喜欢趁天牛落在身旁时溜到其鞘翅之下。

How differently constructed is the feathered wing of a bird and the membrane-covered wing of a bat; and still more so the four wings of a butterfly, the two wings of a fly, and the two wings with the elytra of a beetle.

鸟的羽毛翅膀和蝙蝠的膜覆盖的翅膀的构造有多么不同；更何况还有蝴蝶的四个翅膀、苍蝇的两个翅膀和甲的两个带有鞘翅的翅膀。